Evaluation of viscoplastic slope movement based on triaxial tests

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Abstract

Viscoplastic soil parameters are used in a nonlinear viscoplastic constitutive model to predict time-dependent displacement of slow-moving landslides. The viscoplastic material parameters are determined by a novel method that uses a standard triaxial apparatus. This method employs data obtained from consolidated drained triaxial tests and consolidated drained stress-controlled strain-rate tests. The methodology was applied to undisturbed samples from the Minor Creek landslide in the Franciscan Terrane of northern California. Viscoplastic parameters determined from the laboratory tests were combined with boring log data to calculate the landslide’s vertical velocity profile. This profile provided a reasonable match to a measured velocity profile obtained from repetitive inclinometer surveys.

Publication type Book chapter
Publication Subtype Book Chapter
Title Evaluation of viscoplastic slope movement based on triaxial tests
DOI 10.1130/REG10-p39
Volume 10
Year Published 1995
Language English
Publisher Geological Society of America
Contributing office(s) Cascades Volcano Observatory
Description 12 p.
Larger Work Type Book
Larger Work Subtype Monograph
Larger Work Title Clay and shale slope instability
First page 39
Last page 50
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